COLORADO SPRINGS - A multi car crash on Interstate 25 has backed up traffic for miles just north of the Cimmaron exit. The crash, reported just after 8:00 a.m. Monday, resulted in a brief closure of the entire northbound side of the highway, with traffic being forced to exit and reenter the interstate. Traffic is an hour after the accident, only the left lane is blocked. Traffic is backed up 2.5 miles and has been reduced to a crawl.